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by andreyvit
946 days ago
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Default gender male not how this works in practice. Instead, you define an extra “invalid” value for almost every scalar type, so invalid would be 0, male 1 and female 2. Effectively this makes (almost) every scalar type nullable. It is surprisingly useful, though, and I definitely appreciate this tradeoff most of the time. (Sometimes your domain type really does have a suitable natural default value, and you just make that the zero value.) |
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